The fourteenth and fifteenth centuries were stirring war times, and the nobles kept up bands of armed men, who lived close to, and even in, their strong houses and castles. In the fifteenth century, during the long period of the Wars of the Roses, there was much work for these "men-at-arms to do". This constant warfare weakened at length the power of the barons. Sometimes the Yorkist king, sometimes the Lancastrian king, was in power; and whichever side got the upper hand the king seized the property of the nobles on the other side. As a matter of fact the nobles killed each other off, and when Henry Tudor, a Lancastrian, became king, there was an enormous amount of power in his hands; and he used it so as to keep a closer grip of it. The towns and the traders had no liking for war, and they were quite satisfied to see the government of the country in the hands of a strong king. The new nobles, whom King Henry VII made, had most of them sprung from the merchant and trading class. These new men, and even the king's own friends and supporters, were not allowed to keep bands of armed servants or retainers, able to turn the scale of a battle against the king. The Earl of Warwick, the "Kingmaker", had played that game several times; and it was through Lord Stanley bringing his men over from King Richard III's side to the side of Henry in this way that he had won the Battle of Bosworth, and placed the English crown on Henry's head. After becoming king, Henry VII determined that these bands of armed men, who would follow the whistle of their lord, must be put down. He therefore set to work cautiously, but he had his way. The nobles might no longer keep hosts of servants in livery as they pleased. The king cut down the numbers, so that he might be in a position to say to any of his nobles that his good word he did not want, and his bad word he cared nothing at all about. You will remember the story of King Henry VII and the Earl of Oxford. The king went to pay the earl a visit, and his host, to show him honour, had two long lines of stout retainers, all armed and dressed in his livery, drawn up to meet him. He did all in his power to show honour to the king. When the visit was over, the king said to the earl: "I thank you, my lord, for your good cheer, but I may not endure to have my laws broken in my sight; my attorney must speak with you." Then there was "trouble"; and the earl thought himself very fortunate in getting out of the "scrape" by paying a small fine of ten thousand pounds. It was very awkward for a man to be a noble in Tudor times. He never knew exactly where he was. The king might be making a great fuss with him one day, clapping him in the Tower a few days after, and then chopping off his head and ornamenting London Bridge with it.